US2582792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating waste liquor from paper
Assignee: Jonkopings Mekaniska Werkstads AB
•
Filing: 1946-12-02
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Granted: 1952-01-15
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Expires: 1966-12-02
Abstract
No abstract record available.
Inventors
- 👤 Paren Per
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:22
CPC Classifications
D; D21; D21C; D21C11/00; D21C11/12; Y; Y10; Y10S; Y10S423/00; Y10S423/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US478980A
Cited
US1137780A
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US1326414A
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US1444833A
Cited
US2050400A
Cited
US2161110A
Cited
US2242653A
Cited
US2258467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-14 | 1955-07-16 | 1956-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-14 | 1959-07-16 | 1960-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-14 | 1963-07-16 | 1964-01-15 | $7700.00 | Window Closed / Lapsed |